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bezimeni [28]
2 years ago
15

The discriminant of the equation x^2 - 4x + 4 = 0 shows there will be solution(s).

Mathematics
1 answer:
Alex787 [66]2 years ago
3 0

Answer:

one real

Answer: 1

Step-by-step explanation:

Givens

a = 1

b = -4

c = 4

Discriminate

Discriminate = sqrt(b^2 - 4*a*c)

Discriminate  = sqrt(  (-4)^2 - 4 * (1)(4) )

Discriminate = sqrt ( 16 - 16)

Discriminate = sqrt(0)

Discriminate = 0

That means the 1 real root is -  b / 2a = 4/(2*1) = - -2 = 2

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A water sprinkler covers a circular area with a diameter of 20 feet. If it is set to cover only an arc measuring 120 degrees, wh
Wewaii [24]

<u>Answer:</u>

The sprinkler will cover 104.66 square feet

<u>Explanation:</u>

A water sprinkler covers a circular area with a diameter D=  20 feet

and radius r = 10 feet

Arc measuring degrees = 120 degree

Area of the Arc = \frac{120}{360} \times \pi \times r^2

                         = \frac{1}{3} \times \pi \times 10^2

                         = \frac{1}{3} \times 3.14 \times 10 \times 10

                         = 104.66

The sprinkler will cover an arc area covering 104.66 square feet

4 0
3 years ago
What does 5 3/8 equal
Degger [83]
What the other guy said.
6 0
3 years ago
What is the probability of randomly drawing an odd number between 24 and 33?
Studentka2010 [4]
Write out the numbers between 24 and 33:  {24, 25, 26, 27, 28, 29, 30, 31, 32, 33}

How many numbers have we here?  10.

How many of these numbers are odd?  {25, 27, 29, 31, 33}

Strictly speaking, "between 24 and 33" does not include {24, 33}.

Thus, the odd numbers between 24 and 33 are {25, 27, 29, 31}

The chances of drawing an odd number between 24 and 33 are then 4 / 10.

If, however, we omit the endpoints 24 and 33, then there are 8 numbers between 24 and 33:  {25, 27, 29, 31}

and the odds of choosing an odd number from these eight numbers is 4/8, or 1/2, or 0.50.
6 0
3 years ago
13 + k3= 11 Show work pls
zaharov [31]
13+3k=11
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Answer:

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Step-by-step explanation:

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